sustainable development39
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How Far Can a Bicycle Take You in Uganda?
In rural Uganda a bicycle is the key to many destinations. It can take you to be an entrepreneur offering delivery and taxi services, it can also increase the revenue from the crops since you will be able to transport your “Matoke” bananas to the nearest town and boost the price. A bicycle here means…
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New Water-Smart Communities Prepare For a Water Scarce Future
A recent study by the Stockholm Environment Institute warns that the American Southwest is exhausting its water resources, and if water use isn’t reduced, “The cumulative water shortfall for the Southwest for the next century, without adaptation, will be 1,815 million acre feet” due to population and economic growth. Climate change will, of course, make…
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17th Annual International Sustainable Development Research Conference
“We have in the world today two dangerously different views of the future,” the view of natural scientists and the view of economists, says Lester Brown, founder of the Earth Policy Institute and a keynote speaker at the 17th annual International Sustainable Development Conference.
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Squeezing the Last Drops out of Sicily
If you were to drive south from Palermo, Sicily toward Monreale, you would be ringed in by green mountains, the sparkling white of ancient and modern buildings and the azure Mediterranean Sea receding behind you. Continuing south through the island’s mountainous interior, you would pass verdant agricultural fields on your way past Corleone, the namesake…
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Water-Saving Project in Punjab, India Reaches Out to Farmers Through Cooperatives
After working with over 500 farmers last year to conduct a field experiment on the use of tensiometers to reduce irrigation in rice fields, this year they will be working with about 5,000. As part of this expansion, our program partners at the Punjab Agricultural University (PAU) are working with Cooperative Societies, a network of…
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Attack of the Warzone Water Bottles
Using bottled water in war zones uses oil and pollutes the environment. But Defense officials are looking to move toward sustainability.
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Clean Water vs. Cheap Energy: Can We Have Both?
The social fabric of a water quality debate: Anti-fracking protesters converge on Albany… again. A battle of wills between advocates of clean water and cheap energy ensues.
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Jeffrey Sachs Extends Term as Director of Earth Institute
The Earth Institute, Columbia University announced that Professor Jeffrey Sachs has agreed to extend his term as its director. Since his tenure began in 2002, Sachs has led the Earth Institute to become a leading scientific authority on sustainable development while simultaneously expanding its reach worldwide. Through his guidance, the Earth Institute and its scientists…
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Paulie, Jimmy and Vinny on NYC’s Water Future
New York City’s trio of water and sewer czars, explain the reasons behind rising rates.

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
